Likely the OP had in mind asking this Question about Devlin's account of Euclid's proof of the infinitude of primesthis Question about Devlin's account of Euclid's proof of the infinitude of primes.
In pressing the OP to give a more meaningful title, the length of material quoted may have become emphasized more than other concerns. In any event the amount quoted in the above linked problem is suitable for the nature of the Question being asked.